Improvement in the manufacture of carbon-black from natural carbureted



J. HOWARTH.

improvement inthe Manufacture ofCarbon-Black for Natural CarburetedHydrogen-Gase No. 131,446. V

Patented Sep.17, 1872-.

UNITED STATES' J OHN HOVVARTH, OF SALEM, ASSIGNOR TO HIMSELF AND SAMUELT. LAMB,

' OF CAMBRIDGE, MASSACHUSETTS.

IMPROVEMENT IN THE MANUFACTURE 0E CARBON-BLACK FROM NATURAL CARBURETED-HYDROGEN GAS.

.. Specification forming part of` Letters Patent No. 131,446, datedSeptember 17,1872.

To all whom it may concern:

Be it `known that I, JOHN HOWARTH, of Salem, in the county of Essex andCommonwealth of Massachusetts, have made an invention of a new anduseful Utilization of Natural Garbureted-Hydrogen Gas; and do herebydeclare the following to be a full, clear, and exact descriptionthereof, due reference being had to the accompanying drawing, which is aperspective view of an apparatus for carrying out my invention.

The purpose of this invention is to utilize the carbureted-hydrogen gaswhich escapes in considerable quantities from the tubular wells sunk inthe earth in the attempt to obtain petroleum or hydrocarbon oil, thisgas having been heretofore allowed to go to waste, the result of thisutilization being a superior carbon-black.

In treating this gas for the purpose of carrying out my object I haveemployed as one method of so doing an apparatus constructedsubstantially as follows:

A in the accompanying drawing represents the upper portion of the tubeof a tubular well, such as is sunk in many localities in prospecting forpetroleum-oil, such tube being provided with a safety-valve, a, whichpermits the escape of gas when the pressure exerted by it upon thereceiver isA too great. B represents a vessel composed of a suitablematerial, and containing a quantity of water or oil upon which abell-float, O, is placed after the manner of ordinary gas-reservoirs,the well-tube A communicating with the interior of the vessel B by asuitable pipe, D. Extending from the receiver B to a suitable localityis a second pipe, E, which terminates in a horizontal extension uponwhich are placed a series of gas-burners, F F, &c., in such number asmay be found desirable. Below each burner or each set of burners Idispose a curved apron or trough, G, from the bottom of which, one ormore discharge pipes or ports, H H, extend, the outlet of each pipebeing situated immediately over a movable box or receptacle, I, placedbelow them. In order to intercept the ame issuing from each burner, andcollect the carbon resulting from the partial combustion thereof, Iemploy a slab or and sliding in horizontal grooves or ways a a formed inthe lower part and on opposite sides of the-dome P.

In practice I prefer that a scraper should be provided for each pair ofburners in 'order that a short movement of the handle or rod whichconnects them may suffice to scrape the entire under surface of the slabJ.

The operation of this apparatus is as follows: The gas issuing fromthe'tube A under considerable pressure passes through the pipe D, andinto the reservoir B, from whence it passes into the pipe E and burnersF F, &c. The gate of each burner is opened and the gas inflamed, eachflame being intercepted by the soap-stone slab J, which is situatedimmediately over them. The carbon, resulting from the imperfectcombustion of the gas, is deposited upon theunder side of the slab J,from which it-is to be detached by the scrapers 0 O, Sto., andprecipitated into the troughs G G, from whence it is delivered throughthe ports H H to the vessels I I, which are to be emptied intoasuitablereceiver as often as is necessary. As a high temperature of theslab J would impair the color of the carbon-black deposited upon it, Idispose upon its upper surface a closed pan or vessel, I?, of wat-er, toreduce its temperature, such water being constantly renewed. Anyquantity of carbon-black which escapes upward through the perforationsof' the slab J will enter the chamber or dome K, and be deposited uponthe cover of the panl? or other parts of the chamber. The safetyvalve aprovides a means of disposing of such portion of the gas issuing fromthe well-tube as is not required at the burners.

I do not confine myself arbitrarily to the precise details ofconstruction of the process 2 ISLA/L6 or apparatus herein given forcarrying out the purpose of my invention, as these may manifestly beVaried to a considerable extent without changing the character of theresult.

Claim.

I claim- The production of Carbon-black, from the naturaloarbureted-hydrogen gas issuing from the earth7 by the processsubstantially as is herein described.

JOHN HOWARTH.

Witnesses:

FRED. CURTIS, W. E. BOARDMAN.

